Duplicating-machine.



A. T. BELL.v DUPLICAUNGMACHINE. APPLICATION man Aue.9.1916.

- Patented May/1,1917.

2 SHEETS-SHEET i a A. T. BELL.

- ouPLlCATlNG MACHINE.

PPLICATION FILED AUG9|1916.

Patented May 1', 1917.

2 SHEETS-SHEET 2 l. In"

JEXANDER T. BELL, OF CHICAGO, ILLINOIS.

DUPLICATING-MACHINE.

Specification of Letters Patent.

Patented May ll, ist?.

Application tiled August 9, 1916. Serial No. 113,960.

To cH 'whom it may concern.' y

15e it known that I, ALEXANDER T. BELL, a citizen of the United States,residing at Chicago, in the count-y ofnCook and State of Illinois, haveinvented certain new and useful Improvements in Duplicating-Machines, ofwhich the following is a specification.

The present invention relates to a machine in which are placedduplicating sheets having applied to a surface thereof, a layer ofchemically prepared material, which will receive and retain withinitself, and within limited areas, ink or coloring matter from writing orother matter, whereby a plurality of copies of the written or other matrter may be obtained by -pressing sheets of paper on to said preparedsurface to which said ink or coloring matter has `been applied.

One object of the invention is to provide means for holding a series ofthese duplicating sheets at one end of the machine, and to arrange theholding means for such sheets so that the sheets can be passed from oneposition to another, allowing the placing and removing of the varioussheets from the surface of the table, thereby rendering said sheetsinterchangeable and of a loose-leaf variety.

A further object of the invention is to provide a shiftable mounting forthe duplicating sheet holding means, to enable the movements of thesheets in the manner above specified.

A further object of the invention is to provide means for enabling freshduplicating sheets to be insertedV upon the holder, but to render theholder of closed forma tion, so as to eliminate the accidentaldisengagement of the sheets therefrom.

A further object of the invention is to ar-l range means along the edgesof each sheet for holding it in place, whereby no strain will be placedupon the sheet itself during the holding operation.

The invention further consists in the features of construction andcombination of parts hereinafter described and claimed. i

In the drawings:

Figure 1 is a vertical section of the ma-y chine of the presentinvention, showing one duplicating sheet placed above the table but outofuse. a second sheet placed on the table and ready for use, and a thirdsheet placed below the table and out of use;

Fig. 2, a plan view of said machine;

Fig. 3, a detail section of the forward end of the machine, showing theholder for the duplicating sheets raised in the manner necessary whenmoving a sheet from a point above the table to a pointl below;

Fig. 4, a detail of the mounting for the gage member;

Fig. 5, a detail of one end of the plate which closes the open side ofthe duplicating sheet holding frame;

Fig. 6, a detail of one end of the duplicating sheet;

Fig. 7, a cross section through one end of one of said sheets; and- Fig.8, a detail showing the configuration of the wire inserted along `theedge of the duplicating sheet, with the metal clip and duplicating sheetin place thereon.

In the art to which the present invention relates, there are knowncertain chemically prepared substances any of which when placed onsheets or plates constitute a hectographic sheet or plate. Thesesubstances are capable of absorbing and retaining within themselves inkor coloring material within specified areas, and by taking matter havingink or coloring material thereon and pressing it upon the surface ofsuch substance, a portion of the ink or coloring matter will be absorbedor retained in the body of such substance. Then by taking a blank pieceof paper and pressing it upon the surface of the substance, a portion ofthe ink or coloring matter retained therein will be transferred to theblank piece of paper, and thus a reproduction of the original writing orother matter will be obtained. The amount of ink absorbed by suchsubstances will be suiiicient to enable a plurality of suchreproductions to be obtained. In the present invention, a machine isdisclosed for use with such form -of duplicating sheet, and it isintended to mount the sheets after the manner of loose leaves, wherebyany particular sheet can be brought into use from time t0 time asdesired, or placed in position out of use, thereby enabling the user .tomake up a number of these duplicating sheets, each with a differentwriting thereon, and then by a simple and quick manipulation place uponthe table of the machine, in position for use, any selected one of theduplicating sheets which has upon it the writing it is desired toduplicate.,

iso

Referring now --to the drawings, the machine comprises a base 9, uponwhich is mounted a table 10. Both the base and table may be of anysuitable style and size. Ex-

tending from the table, at what will be termed the forward end of themachine, are com anion rails 11. Extending between these rails is a rodor bar12; and lugs pr projections 13 extend from each of the rails 11 tolimit the downward movement of this bar 12 with respect to said rails. f

Connected to each end of the bar 12 is an arm 14h, each of which arms isconnected to an arm 15 by a suitable pivot pin 16; and the arms 15 areeach joined by means of a stud or pivot 17 to a rail 11. r1`his forms afoldiir pivotal connection between the bar 12 an rails 11, allowing thisbar to be swung upward from therails, the function of whichwilLhereiiuafteil appear.

Connected to the bar 12 are du licating sheet receiving frames 18 and19. oth are alike in configuration and arrangement, and a detaileddescription of only one will be entered into. Said holders each consistof a front rail 20, a top rail 21, a rear rail 22, and a bottom rail 23;and the front rail 20 has a..bent portion 24, which is entered intothe'bar 12. The bottom rail 23 is spaced away from said bar to providean opening 23, and to close this opening a plate 26 is employed heldnormally in closed position,l by a spring 26 (see Fig. 5), carried bythe bar 12. This plate extends clear across from sie 35 the holder 18 tothe holder 19, as will be apparent from Fi 2.

' The duplicating sheets 27 are doublebacked, or otherwise reinforced,at the ends` 28; and in this reinforced portion, at each 40 end, isinserted a wire 29, which is cut `raway at intervals to produce areduced portion 30 (see Fig. 8). About this reduced portion are placedmetal tabs 31, each having an opening 32 therein. The tabs at the 45front end of the sheet will be inserted upon the wires of the frames 18and 19, while the tabs at the rear end of-the sheet will be assed overlugs or pins 33 on the top surace of the table 10.

In use, the spring-pressed plate 26 is swung out of the way, and a(plurality of duplicating sheets are inserte upon the wire holders 18and 19 and placed upon the 4front bars 20 of said holders, as indicated.55 b y the numeral 34 in Fig. 2. When it is de- -sired to use one ofthese sheets, itis moved upward on the bar 20 across the bar 21 anddropped down upon the bar 22 until it rests on the surface of the table,as indicated by the numeral 35 in Fig. 1. The tabs at the i rear rend ofthe sheet when so placed upon the table are passed over the studs orpins 33. A gage member 36 is then placed in positlon, which gagemember'is carried by, and

'05 adjustable upon, a rod '37, held in clips 38.

neat-voe 0n one end of the rod is a thumb-nut 39 for aiiixing the clipssecurely to the table'and holding the rod carrying the gage in xedposition. By loosening the thumb-nut, the clips can be disengaged fromthe sides of the table to allow the gage to be shifted lengthwise of theduplicating sheet, or removed entirely from the table. By adjusting thegage along the rod 37, it may be moved sidewise of the duplicatingsheetto a desired point. The gage is adjusted to bring the aper whenplaced upon the duplicating s eet in proper position to such. area ofthe body of the substance as may have the ink contained therein. s@

After suilicient duplications have been made, the rod 12 is elevated asshown in Fig. A 3, which is possible by reason of its jointed hingedconnection to the rails 11, and the duplicating sheet, which has beenpreviously used, is positioned upon the lower bar 23, as indicated bythe numeral 40 in Fig. 1. This means of handling the sheets can becarried on to the extent desired, and when necessary to again use asheet that has been previously used, the bar 12 and sheet holders canagain be elevated as in Fig. 3, and the sheets brought from the lowerrail 23 of the sheet holding frames up into position to be placed uponthe surface of the table. This gives a mounting for the sheets, so thatthey are arranged in loose-leaf order and v.can lbe interchanged asdesired;v that is; passed from a position above the table to a positlonbelow, or from below to above.

The invention is of course susceptible to modification and is not deemedto be limited in any other manner tha-n may be by the terms of theappended claims.

I claim:

1. In a duplicating machine, thecombination of a table, a holderadjacent one end of the table adapted to slidably carry dupliatmgsheets, and means permitting a shifting of said holder away from thetable to 110 allow a sheet to slide upon the holder and to pass from aposition above the table to a position below the table, substantially asdescribed.

2. In a du licating machine, the combination of a tab e, a holderadjacent one end of the table adapted to slidably carry duplicatingsheets, a swinging support for said holder to permit a movement of saidholder away. from the table and allow selected ones 120 of said sheetsVto slide upon the holder and pass from a position above the table to aposition below the table, substantially as described. 3. ln aduplicating machine, the combination of a table, a holder adjacent oneend of the table adapted to slidably carry duplicating sheets, afoldable and swinging su port for said holder to permit a movement'osaid holder away from the table and allow se- 130 lected ones of saidsheets to slide upon the holder and pa from a position above the tableto a position below the table, .substantially as described.

4c. In a duplicating machine, the combination of a table, a holderadjacent one end of the table, consisting of companion frames adapted toslidably carry duplicating sheets, and `means permitting a shifting' ofsaid holder away from the table to allowT selected ones of said sheetsto slide upon said frames and pass from a'position above the table to aposition below the table, substantially as described.

5. In a duplicating machine, the combination of a table, a bar at oneend of the table,

a shiftable support for said bar, companion oppositelydisposedduplicating sheet holders carried by said bar adapted to slidably carryduplicating sheets, and said bar when shifted placing the. holders inposition to permit a sheet to slide upon said holders and move into aposit-ion on or off the table,

substantially as described.

6. In a duplicating machine, the combina- .tion of a frame, a tablecarried bythe frame, a bar at one end of the table, compam'onoppositely-disposed duplicating sheet holders on the bar adapted toslidably carry duplicating sheets, pivoted arms connected to andcarrying the bar, members attached to said frame and to which said armsare pivotally connected, and said bar when swung about the pivot of saidarms placing said holders in position to permita sheet to slide from oneposition upon said holders to ,another and place said sheet 1n aposition on or ofi' the table, substantially as described.

7. In a duplicating machine, the combination of a table, companionoppositely-disposed framedike holders for duplicating sheets arranged atone end of the table and adapted to slidably carry said sheets, one sideof each holder being open, a closure for said open sides of saidholders, a shifta'ble mounting for said holders to permit their assuminga position which allows a duplicating sheet to slide thereon and beplaced in positionsion and off the table, substantially as described.

8. In a duplicating machine, the combination of a table, a series ofduplicating sheets, a holder for said sheets at one end of the tableadapted to slidably carry the said sheets, and a mounting for saidholder enabling a movement thereof to permita duplicating sheet to slideupon said holder and be moved to positions on and oil` the table,substantially as described.

9. In a duplicating machine, the combination of a table, a holderA forduplicating sheets adjacent one end of the table, said holder comprisinga rectangular frame arranged when in normal position partially above andpartially below the table, and means for shifting said holder toallow aduplicating sheet to move from that part of the'holder above` the tableto that part of the holder below the table, substantially as described.

10. In a duplicating machine, the combination of a table, a holder forduplicating sheets adjacent one end of the` table, a tab extending fromthe end of the duplicating sheet and adapted to engage with the holder,

a supporting member in said end of saidvv sheet to which said tab issecured, and said sheet being cut away at the point of engagementbetween said tab and supporting member, substantially as described.

11. In a duplicating machine, the combination of a table, a holder forduplicating sheets adjacent one end of the table, `a tab secured to oneend of said sheet and adapted to engage with the holder, av wireinserted in ysaid end of said sheet, said wire being grooved to receivesaid tab, and said sheet being cut away at the point of engagementbetween said tab and wire, substantially as described.

ALEXANDER T. BELL.

